In a 1 m long double-pipe heat exchanger made of stainless steel, a temperature of 80 °C flowing through the center pipe at a speed of 40 kg/s hot water to 45 oC; It is cooled by the cooling water at 25 oC flowing between the two pipes at a speed of 30 kg/s. Coefficient of thermal conductivity 16 The inner diameter and outer diameter of the inner tube of the heat exchanger with W/ m.oC are 0.014 m and 0.015 m, respectively3; inner and outer diameter of outer tube respectively 0.022 m and 0.0225 m. Convective heat transfer coefficients according to indoor and outdoor area are 531457 and 513015 W/m2, respectively. °C. specific of water heat capacity can be taken as 4.18 kJ/kg. C on average. Using this data; a) Cold water outlet temperature (oC) b) Transferred heat(kW) c) Calculate the total heat transfer coefficient according to the interior area.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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In a 1 m long double-pipe heat exchanger
made of stainless steel, a temperature of
80 °C flowing through the center pipe at a
speed of 40 kg/s
hot water to 45 oC; It is cooled by the
cooling water at 25 oC flowing between the
two pipes at a speed of 30 kg/s. Coefficient
of thermal conductivity 16
The inner diameter and outer diameter of
the inner tube of the heat exchanger with W/
m.oC are 0.014 m and 0.015 m, respectively;
inner and outer diameter of outer tube
respectively
0.022 m and 0.0225 m. Convective heat
transfer coefficients according to indoor and
outdoor area are 531457 and 513015 W/m2,
respectively.
.°C. specific of water
heat capacity can be taken as 4.18 kJ/kg. C
on average. Using this data;
a) Cold water outlet temperature (oC)
b) Transferred heat(kW)
c) Calculate the total heat transfer
coefficient according to the interior area.
Mi Notlar ile oluşturuldu
Transcribed Image Text:In a 1 m long double-pipe heat exchanger made of stainless steel, a temperature of 80 °C flowing through the center pipe at a speed of 40 kg/s hot water to 45 oC; It is cooled by the cooling water at 25 oC flowing between the two pipes at a speed of 30 kg/s. Coefficient of thermal conductivity 16 The inner diameter and outer diameter of the inner tube of the heat exchanger with W/ m.oC are 0.014 m and 0.015 m, respectively; inner and outer diameter of outer tube respectively 0.022 m and 0.0225 m. Convective heat transfer coefficients according to indoor and outdoor area are 531457 and 513015 W/m2, respectively. .°C. specific of water heat capacity can be taken as 4.18 kJ/kg. C on average. Using this data; a) Cold water outlet temperature (oC) b) Transferred heat(kW) c) Calculate the total heat transfer coefficient according to the interior area. Mi Notlar ile oluşturuldu
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